12102101110 has 64 divisors (see below), whose sum is σ = 25036128000. Its totient is φ = 4165603200.

The previous prime is 12102101069. The next prime is 12102101119. The reversal of 12102101110 is 1110120121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102101119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4071925 + ... + 4074895.

It is an arithmetic number, because the mean of its divisors is an integer number (391189500).

Almost surely, 2^12102101110 is an apocalyptic number.

12102101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102101110 is an abundant number, since it is smaller than the sum of its proper divisors (12934026890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12102101110 is a wasteful number, since it uses less digits than its factorization.

12102101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12102101110 its reverse (1110120121), we get a palindrome (13212221231).

The spelling of 12102101110 in words is "twelve billion, one hundred two million, one hundred one thousand, one hundred ten".